Unexpected formation of 4-arylcyclopentane-1,1,3,3-tetracarboxylates in GaCl3-catalyzed reaction of 2-arylcyclopropane-1,1-dicarboxylates with tetrasubstituted 1-pyrazolines
作者:Roman A. Novikov、Yury V. Tomilov、Oleg M. Nefedov
DOI:10.1016/j.mencom.2012.06.002
日期:2012.7
Gallium trichloride-catalyzed reaction between 2-arylcyclopropane-1,1-dicarboxylates and 3,3,5,5-tetrasubstituted 1-pyrazolines affords 4-arylcyclopentane-1,1,3,3-tetracarboxylates, which originate from cycloaddition of the two molecules of the starting cyclopropane with the loss of one arylidene fragment subtracted by the 1-pyrazoline.
2-芳基环丙烷-1,1-二羧酸酯与3,3,5,5-四取代的1-吡唑啉之间的三氯化镓催化反应提供了4-芳基环戊烷-1,1,3,3-四羧酸酯,其源于两者的环加成起始环丙烷的分子数减少了一个亚芳基片段的损失,再减去1-吡唑啉。